Friction stir welding tool



1. Friction stir welding tool

1.1 : Back

1.2 : Front

1.3 : Left

1.4 : Bottom

1.5 : Perspective

1.6 : Right

1.7 : Top

This design relates to a friction stir welding tool. 

CLAIM The ornamental design for a friction stir welding tool, as shown and described. 